diff --git a/change/@fluentui-react-conformance-f6f452eb-ff7e-4715-918a-4a62a51a7e40.json b/change/@fluentui-react-conformance-f6f452eb-ff7e-4715-918a-4a62a51a7e40.json
new file mode 100644
index 00000000000000..6cf976027c40fa
--- /dev/null
+++ b/change/@fluentui-react-conformance-f6f452eb-ff7e-4715-918a-4a62a51a7e40.json
@@ -0,0 +1,7 @@
+{
+  "type": "patch",
+  "comment": "fix: add @swc/helpers to deps instead of tslib as we use swc for transpilation",
+  "packageName": "@fluentui/react-conformance",
+  "email": "martinhochel@microsoft.com",
+  "dependentChangeType": "patch"
+}
diff --git a/packages/react-conformance/package.json b/packages/react-conformance/package.json
index 6ab0a14ee718c0..d3b8eb3597df2b 100644
--- a/packages/react-conformance/package.json
+++ b/packages/react-conformance/package.json
@@ -29,7 +29,7 @@
     "chalk": "^2.4.2",
     "react-docgen-typescript": "^2.1.0",
     "react-is": "^17.0.2",
-    "tslib": "^2.1.0"
+    "@swc/helpers": "^0.4.14"
   },
   "peerDependencies": {
     "@types/react": ">=16.8.0 <19.0.0",